All the Dreamers (and I hate that word in this context) had to reveal themselves in order to qualify. Anyway that announced themselves will be punished for attempting to comply with what they thought was the law.
Politically, that will work in safe districts, but Ryan and McConnell don’t want to test that image in any district that’s on the fence.
But it wasn't the law. Laws are passed by Congress. Congress never passed it, and never will.